diff --git a/middlewares/custom/wakatime.go b/middlewares/custom/wakatime.go
index 9e9e0ae..903f426 100644
--- a/middlewares/custom/wakatime.go
+++ b/middlewares/custom/wakatime.go
@@ -14,7 +14,6 @@ import (
 	routeutils "github.com/muety/wakapi/routes/utils"
 	"github.com/patrickmn/go-cache"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"time"
 )
@@ -67,9 +66,9 @@ func (m *WakatimeRelayMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Reque
 		return
 	}
 
-	body, _ := ioutil.ReadAll(r.Body)
+	body, _ := io.ReadAll(r.Body)
 	r.Body.Close()
-	r.Body = ioutil.NopCloser(bytes.NewBuffer(body))
+	r.Body = io.NopCloser(bytes.NewBuffer(body))
 
 	// prevent cycles
 	downstreamInstanceId := ownInstanceId
@@ -149,12 +148,12 @@ func (m *WakatimeRelayMiddleware) filterByCache(r *http.Request) error {
 		return err
 	}
 
-	body, _ := ioutil.ReadAll(r.Body)
+	body, _ := io.ReadAll(r.Body)
 	r.Body.Close()
-	r.Body = ioutil.NopCloser(bytes.NewBuffer(body))
+	r.Body = io.NopCloser(bytes.NewBuffer(body))
 
 	var rawData interface{}
-	if err := json.NewDecoder(ioutil.NopCloser(bytes.NewBuffer(body))).Decode(&rawData); err != nil {
+	if err := json.NewDecoder(io.NopCloser(bytes.NewBuffer(body))).Decode(&rawData); err != nil {
 		return err
 	}
 
@@ -190,7 +189,7 @@ func (m *WakatimeRelayMiddleware) filterByCache(r *http.Request) error {
 	if err := json.NewEncoder(&buf).Encode(newData); err != nil {
 		return err
 	}
-	r.Body = ioutil.NopCloser(&buf)
+	r.Body = io.NopCloser(&buf)
 
 	return nil
 }
diff --git a/routes/api/badge_test.go b/routes/api/badge_test.go
index d6e4c63..7316509 100644
--- a/routes/api/badge_test.go
+++ b/routes/api/badge_test.go
@@ -8,7 +8,7 @@ import (
 	"github.com/muety/wakapi/models"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"regexp"
@@ -69,7 +69,7 @@ func TestBadgeHandler_Get(t *testing.T) {
 
 			assert.Equal(t, http.StatusOK, res.StatusCode)
 
-			data, err := ioutil.ReadAll(res.Body)
+			data, err := io.ReadAll(res.Body)
 			if err != nil {
 				t.Errorf("unextected error. Error: %s", err)
 			}
@@ -90,7 +90,7 @@ func TestBadgeHandler_Get(t *testing.T) {
 
 			assert.Equal(t, http.StatusForbidden, res.StatusCode)
 
-			data, err := ioutil.ReadAll(res.Body)
+			data, err := io.ReadAll(res.Body)
 			if err != nil {
 				t.Errorf("unextected error. Error: %s", err)
 			}
@@ -110,7 +110,7 @@ func TestBadgeHandler_Get(t *testing.T) {
 
 			assert.Equal(t, http.StatusForbidden, res.StatusCode)
 
-			data, err := ioutil.ReadAll(res.Body)
+			data, err := io.ReadAll(res.Body)
 			if err != nil {
 				t.Errorf("unextected error. Error: %s", err)
 			}
diff --git a/routes/compat/wakatime/v1/users_test.go b/routes/compat/wakatime/v1/users_test.go
index 9f992b5..8833730 100644
--- a/routes/compat/wakatime/v1/users_test.go
+++ b/routes/compat/wakatime/v1/users_test.go
@@ -8,7 +8,7 @@ import (
 	"github.com/muety/wakapi/middlewares"
 	"github.com/muety/wakapi/mocks"
 	"github.com/muety/wakapi/models"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"strings"
@@ -78,7 +78,7 @@ func TestUsersHandler_Get(t *testing.T) {
 			res := rec.Result()
 			defer res.Body.Close()
 
-			data, err := ioutil.ReadAll(res.Body)
+			data, err := io.ReadAll(res.Body)
 			if err != nil {
 				t.Errorf("unexpected error. Error: %s", err)
 			}
@@ -104,7 +104,7 @@ func TestUsersHandler_Get(t *testing.T) {
 			res := rec.Result()
 			defer res.Body.Close()
 
-			data, err := ioutil.ReadAll(res.Body)
+			data, err := io.ReadAll(res.Body)
 			if err != nil {
 				t.Errorf("unextected error. Error: %s", err)
 			}
@@ -128,7 +128,7 @@ func TestUsersHandler_Get(t *testing.T) {
 			res := rec.Result()
 			defer res.Body.Close()
 
-			data, err := ioutil.ReadAll(res.Body)
+			data, err := io.ReadAll(res.Body)
 			if err != nil {
 				t.Errorf("unextected error. Error: %s", err)
 			}
diff --git a/routes/home_test.go b/routes/home_test.go
index 9af3899..9bd61b5 100644
--- a/routes/home_test.go
+++ b/routes/home_test.go
@@ -7,7 +7,7 @@ import (
 	"github.com/muety/wakapi/mocks"
 	"github.com/muety/wakapi/models"
 	"github.com/stretchr/testify/assert"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"os"
@@ -58,7 +58,7 @@ func TestHomeHandler_Get_NotLoggedIn(t *testing.T) {
 
 			assert.Equal(t, http.StatusOK, res.StatusCode)
 
-			data, err := ioutil.ReadAll(res.Body)
+			data, err := io.ReadAll(res.Body)
 			if err != nil {
 				t.Errorf("unextected error. Error: %s", err)
 			}
diff --git a/routes/subscription.go b/routes/subscription.go
index e189827..700d5f0 100644
--- a/routes/subscription.go
+++ b/routes/subscription.go
@@ -19,7 +19,7 @@ import (
 	stripePrice "github.com/stripe/stripe-go/v74/price"
 	stripeSubscription "github.com/stripe/stripe-go/v74/subscription"
 	"github.com/stripe/stripe-go/v74/webhook"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"strings"
 	"time"
@@ -197,7 +197,7 @@ func (h *SubscriptionHandler) PostPortal(w http.ResponseWriter, r *http.Request)
 
 func (h *SubscriptionHandler) PostWebhook(w http.ResponseWriter, r *http.Request) {
 	bodyReader := http.MaxBytesReader(w, r.Body, int64(65536))
-	payload, err := ioutil.ReadAll(bodyReader)
+	payload, err := io.ReadAll(bodyReader)
 	if err != nil {
 		conf.Log().Request(r).Error("error in stripe webhook request: %v", err)
 		w.WriteHeader(http.StatusServiceUnavailable)
diff --git a/routes/utils/heartbeat_utils.go b/routes/utils/heartbeat_utils.go
index 1982a12..1c441a1 100644
--- a/routes/utils/heartbeat_utils.go
+++ b/routes/utils/heartbeat_utils.go
@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"github.com/muety/wakapi/models"
-	"io/ioutil"
+	"io"
 	"net/http"
 )
 
@@ -25,11 +25,11 @@ func ParseHeartbeats(r *http.Request) ([]*models.Heartbeat, error) {
 func tryParseBulk(r *http.Request) ([]*models.Heartbeat, error) {
 	var heartbeats []*models.Heartbeat
 
-	body, _ := ioutil.ReadAll(r.Body)
+	body, _ := io.ReadAll(r.Body)
 	r.Body.Close()
-	r.Body = ioutil.NopCloser(bytes.NewBuffer(body))
+	r.Body = io.NopCloser(bytes.NewBuffer(body))
 
-	dec := json.NewDecoder(ioutil.NopCloser(bytes.NewBuffer(body)))
+	dec := json.NewDecoder(io.NopCloser(bytes.NewBuffer(body)))
 	if err := dec.Decode(&heartbeats); err != nil {
 		return nil, err
 	}
@@ -40,11 +40,11 @@ func tryParseBulk(r *http.Request) ([]*models.Heartbeat, error) {
 func tryParseSingle(r *http.Request) ([]*models.Heartbeat, error) {
 	var heartbeat models.Heartbeat
 
-	body, _ := ioutil.ReadAll(r.Body)
+	body, _ := io.ReadAll(r.Body)
 	r.Body.Close()
-	r.Body = ioutil.NopCloser(bytes.NewBuffer(body))
+	r.Body = io.NopCloser(bytes.NewBuffer(body))
 
-	dec := json.NewDecoder(ioutil.NopCloser(bytes.NewBuffer(body)))
+	dec := json.NewDecoder(io.NopCloser(bytes.NewBuffer(body)))
 	if err := dec.Decode(&heartbeat); err != nil {
 		return nil, err
 	}
diff --git a/utils/template.go b/utils/template.go
index 9282f4b..02d0e94 100644
--- a/utils/template.go
+++ b/utils/template.go
@@ -3,8 +3,8 @@ package utils
 import (
 	"encoding/json"
 	"html/template"
+	"io"
 	"io/fs"
-	"io/ioutil"
 	"path"
 )
 
@@ -44,7 +44,7 @@ func LoadTemplates(templateFs fs.FS, funcs template.FuncMap) (TemplateMap, error
 		if err != nil {
 			return nil, err
 		}
-		templateData, err := ioutil.ReadAll(templateFile)
+		templateData, err := io.ReadAll(templateFile)
 		if err != nil {
 			return nil, err
 		}